Results 281 to 290 of about 1,584,853 (313)

Single-Crystal NMR Spectroscopy of Spin <i>I</i> = 3: ¹⁰B-NMR of Hambergite, Be₂BO₃OH. [PDF]

Molecules
Steinadler J, Minke C, Bräuniger T.
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The Gravity Equation

Abstract This chapter explores why bilateral trade flows are systematically related to countries’ economic size and geographic distance. Starting from empirical regularities—such as US and Swiss trade patterns—it shows that nations trade disproportionately with large and nearby economies, with extensions capturing borders, language ...
Reto Foellmi, Stefan Legge
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Parabolic equations for gravity and acousto-gravity waves

The Journal of the Acoustical Society of America, 1999
Parabolic equations for gravity and acousto-gravity waves are derived and implemented. The wave equations for these problems contain singularities at depths at which the buoyancy frequency equals the forcing frequency. One of the advantages of the parabolic equation solution is that it is easy to avoid numerical problems associated with the ...
Joseph F. Lingevitch, Michael D. Collins, William L. Siegmann   +2 more
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STOCHASTIC GRAVITY AND THE LANGEVIN-RAYCHAUDHURI EQUATION

International Journal of Modern Physics A, 2005
We treat the gravitational effects of quantum stress tensor fluctuations. An operational approach is adopted in which these fluctuations produce fluctuations in the focusing of a bundle of geodesics. This can be calculated explicitly using the Raychaudhuri equation as a Langevin equation.
Borgman, J., Ford, L. H.
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Nonlinear Equations for Acoustic Gravity Waves

Physica Scripta, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Wave equations in conformal gravity

Modern Physics Letters A, 2018
We study the wave equation governing massless fields of all spins (s = 0, [Formula: see text], 1, [Formula: see text] and 2) in the most general spherical symmetric metric of conformal gravity. The equation is separable, the solution of the angular part is a spin-weighted spherical harmonic, and the radial wave function may be expressed in terms of ...
Du, Juan-Juan, Wang, Xue-Jing, He, You-Biao, Yang, Si-Jiang, Li, Zhong-Heng   +4 more
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Trade, democracy, and the gravity equation

Journal of Development Economics, 2010
Abstract Does democracy affect trade? There are several channels by which democracy may affect trade, with differing implications. First, democratization in the exporting country can improve product quality and reduce trade costs, increasing bilateral trade.
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Geodesic deviation equation in f(Q)-gravity

Chinese Journal of Physics, 2022
Avik De
exaly  

Constraining the Viscous Dark Energy Equation of State in f (R, Lm) Gravity

Universe, 2023
Pk Sahoo, Sanjay Mandal, Raja Solanki
exaly  

Unified quantum gravity field equation describing the universe from the smallest to the cosmological scales

Physics Essays, 2022
Espen Gaarder Haug
exaly